Kayla Blackmon, a San Antonio high school senior, said she was working Friday at Freddy's restaurant in San Antonio when she discovered an envelope full of cash apparently dropped by a customer, KENS-TV, San Antonio, reported Wednesday.
Blackmon said she immediately turned the money over to her store manager. She said keeping the cash never occurred to her.
"My parents always taught me that if it doesn't belong to you, don't touch it, don't steal it," Blackmon said. "Don't lie about anything, always be honest."
The customer returned about a half a hour later and said he was on vacation with his family and had dropped all of the cash for their Christmas trip.
The man gave Blackmon a $100 reward for her honesty.
"I got to meet him and he told me it was a real blessing to have the money back," said Blackmon. "I wanted a hug, but I had custard all over me."
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